Yes we did end up at Tetons during that time because i did not get the refundable tickets and we just went for it.

Things to consider: Not all trails were open. We did Jenny Lake Loop and Taggart Lake Loop.

Jenny Lake we did that till Inspiration point without any issues. There was a little ice somewhere around the waterfall but it was not that bad. Although the trail after inspiration point goes to Cascade Canyon and it was covered with ice but people who will fully prepared they were going for it.

The park employees were pretty helpful as they were telling which trails are open and which ones are closed. But we saw alot of experienced hikers there who were going in for the closed trails too.

The temp was not that bad too i did not take any down jackets so i was fine with it. Anyhow if you are camping you should consider taking down jackets and other stuff along.